This issue is not limited to Firefox or even the control key. When scrolling and then coasting in one application and then using alt-tab to switch to another application, often the coasting continues.
For example, begin scrolling a long web page in Firefox and let it coast. While it is still coasting, press alt-tab but don't release the alt key. Every time I do this, the highlighted application in the application switcher 'coasts' right or left (depending on whether I am coasting up or down) and then slowly stops after a couple of seconds. Here is another (less reproducible) example. I began scrolling and coasting in Terminator, then pressed alt-tab to switch to Image Viewer (eog) and the picture I had open zoomed out, which is the 'scroll down' action in Image Viewer. Perhaps what I am describing is a different bug, but if so, I it seems closely connected. The way coasting is done seems fragile. It might be that the fix is simply to stop coasting when any key is pressed, or it might be a lot more complicated than this. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/803348 Title: In Firefox, scrolling and then pressing Ctrl causes zoom Status in firefox package in Ubuntu: Confirmed Bug description: When scrolling a heavy webpage in Firefox tend to lag on my computer so that the motion of the page continues after I have stopped giving scrolling commands. If I then, before the page has stopped, press Ctrl (to Ctrl-Tab switch between tabs, for example) Firefox starts to zoom the page (as when you scroll while holding Ctrl). This is unwanted behaviour every time for me. I'm using Ubuntu 11.04 with Firefox 5 (5.0+build1+nobinonly-0ubuntu0.11.04.2). In Ubuntu 10.10, the behaviour was the expected, i.e., zooming or scrolling was determined based on if you held Ctrl pressed while rolled your scroll wheel, not whether Ctrl was pressed during the motion of the page. To reproduce: 1. Open a webpage in Firefox, preferably a large and heavy one. 2. Make sure your computer is slow enough that the scrolling motion of the page lags appreciably behind the scrolling commands of your mouse wheel. 3. Stop rolling the wheel and while the page is still scrolling, press Ctrl. This causes Firefox to zoom the page. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: firefox 5.0+build1+nobinonly-0ubuntu0.11.04.2 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic i686 Architecture: i386 Date: Wed Jun 29 10:10:27 2011 FirefoxPackages: firefox 5.0+build1+nobinonly-0ubuntu0.11.04.2 flashplugin-installer 10.3.181.26ubuntu0.11.04.1 adobe-flashplugin N/A icedtea-plugin 1.1~20110420-0ubuntu1.1 ProcEnviron: LANGUAGE=sv_SE:en PATH=(custom, user) LANG=sv_SE.UTF-8 SHELL=/bin/bash SourcePackage: firefox UpgradeStatus: Upgraded to natty on 2011-06-03 (25 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/803348/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp